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作 者:杨阳 孙亚婷 邹振华 YANG Yang;SUN Yating;ZOU Zhenhua(Middle Changjiang River Bureau of Hydrological and Water Resources Survey,Bureau of Hydrology of Changjiang Water Resources Commission,Wuhan 430010,China)
机构地区:[1]长江水利委员会水文局长江中游水文水资源勘测局,湖北武汉430010
出 处:《水利水电快报》2025年第2期31-36,共6页Express Water Resources & Hydropower Information
摘 要:涉水工程的建设对河床演变产生了深刻影响,在受多种涉水工程叠加影响的河段,其河床演变规律较天然情况更为复杂。以汉江兴隆水利枢纽下游近坝段为例,基于原型观测资料分析,研究在兴隆水利枢纽、引江济汉工程、汉江千吨级航道整治工程等工程实施后河段的响应机制。结果表明:在上游水利枢纽蓄水运用后,河段发生以冲刷为主的再造床过程;航道整治工程实施后,水流逐渐归槽,总体河势趋于稳定;引江济汉工程实施后,汇流口下游局部易形成浅滩。研究成果可为汉江河段河道治理决策提供参考。The construction of water engineering projects has profoundly influenced the evolution of riverbeds.In river sections affected by multiple water engineering projects,the patterns of riverbed evolution are more complex compared to natural conditions.Taking the near-dam reach of Xinglong key water control project as an example,we analyzed the response mechanism of the river section after the implementation of various projects such as upstream hydraulic facilities,the water transfer project from Yangtze River to Hanjiang River,and the renovation project of the Hanjiang River thousand-ton-class navigation channel.The results indicated that after the impoundment of upstream hydraulic facilities,the river section undergoes a process of bed reconstruction primarily dominated by erosion.Following the implementation of the navigation channel renovation project,the flow gradually returns to the channel,and the overall river tendency stabilized.After the implementation of the Hanjiang River Diversion Project,local shoals were prone to form downstream of the confluence.The research findings can provide a basis for decision-making in river management.
分 类 号:TV131[水利工程—水力学及河流动力学]
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